Thought this might be useful!
Microsoft Lync 2010 Frequently Used Keyboard shortcuts
Below are the shortcut keys that can be used irrespective of which window has focus.
Table 1: Global Hotkeys
| Shortcut key | Description |
| Windows Key + Q | Brings Lync main window to foreground |
| Windows Key + A | Accept an incoming toast invitation |
| Windows Key + X | Declines toast invitation and change your status to ‘Do not disturb’ |
| Windows Key + Esc | Decline toast invitation |
| Ctrl + Shift + Space | Sets focus on the application sharing toolbar |
| Ctrl + Alt + Space | Take back control when sharing your screen |
| Ctrl + Shift + S | Stop sharing your screen |
Below are the shortcut keys that can be used on the main window when it is in foreground.
Table 2: Main Window Shortcuts
| Shortcut key | Description |
| Ctrl + 1 | Go to the contact list tab |
| Ctrl + 2 | Go to the activity feeds tab |
| Ctrl + 3 | Go to the conversation list tab |
| Ctrl + 4 | Go to the phone tab |
| Alt + A | View all conversations when in conversation list tab |
| Alt + D | View missed conversations when in conversation list tab |
| Alt + C | View missed calls when in conversation list tab |
Below are the shortcut keys that can be used on a conversation window when it is in foreground.
Table 3: Conversation Window Shortcuts
| Shortcut key | Description |
| Ctrl + W | Show/Hide IM area |
| Ctrl + R | Show/Hide participant list |
| Ctrl + Shift + Y | Show/Hide left region when sharing stage is visible |
| Alt + I | Invite a contact to an existing conversation |
| Ctrl + F | Send a file |
| Alt + P | Open a file received |
| Alt + C, Alt + D | Accept or decline an invitation to share, audio or video modalities |
| Ctrl + Shift + Enter | Start or end phone call |
| Ctrl + Shift + H | Hold/Resume an ongoing audio conversation |
| Ctrl + M | Pause/Resume video (only if already in progress) |
| Alt + R | Rejoin audio in a conference |
| Escape | Exits fullscreen view if present. Else, will close the conversation window only if it has no audio, video or sharing. |
| Ctrl + Shift + <, Ctrl + Shift + > | Increase/Decrease selected text font size in IM input |
| Ctrl + ], Ctrl + [ | Zoom in/Zoom out the text in IM input and history |